木炭の研究(第7報) : 活性炭原料用木炭について

概要

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The experiment of the preparation of active carbon was carried out from next three sorts of charcoals, 1) Hard charcoal (Quercus sp.) 2) Soft charcoal (Pinus sp. Betula sp.) 3) Hardened or softened charcoal by the carbonization method (Fagus sp. etc.).1. Used steam, 20 cc, activation temp. 950℃, activation time 5 min. used charcoal, 5 g, charcoal granule 10〜20 mesh.2. Before the activation, the charcoal is pretreated with boiled water, or boiled hydrochloric acid (2%) for 1 hr.3. Yield;1) Hard charcoal, non treat 0〜24% washed with HCl 32〜38% washed with boiled water 2〜32% 2) Soft charcoal, non treat 24〜44% washed with HCl 26〜46% washed with boiled water 23〜42% 3) Hardened or Softened charcoal, non treat 28〜38% washed with HCl 16〜38% washed with boiled water 26〜44% The results obtained showed that the charcoal of large volume density was, highly activated than those of small volume density.
日本森林学会の論文
1954-08-25